Turnbuckle-lock.



- B. M. MATHIAS.

TURNBUCKLE LOCK.

APPLICATION min JUNE 20. 1 911.

1,286,701, Patented Dec. 3, 1918.

/CZ' ,l

y A /j 4 r' /f n l \7/ ior'ney sTaTEs PATENT onto i BERTON M. MATI-IIAS, OF MINNEAPOLIS, MINNESOTA.

TURNBUCKLE-LOCK.

Specication of Letters Patent.

Patented Dec. 3, 1918.

Application iied June'20, 1917. Serial No. 178,864.

Turnbuckle-Locks, of which the following is a specification. I

One object of my invention is to provide in a turnbuckle having a body and a bolt,V

means for locking the two parts in any de-y sired position.

Another object of my invention is to provide in a turnbuckle having a body and abolt, a strong locking collar having wings thereon, and means for connecting the collar to the bolt.

With these and incidental objects in veiw the invention consists of certain novel features of construction and combination of parts', the essential elements of which are hereinafter described with referenceY to the drawing which accompanies and forms a part of this specification.

In the drawin Figure 1 is a side elevation of the pre erred construction of my improved turnbuckle; Fig. 2 is a section taken on the line 2 2, Fig. 1; Fig. 3 is a view similar to that shown in Fig. 1 taken of a modification of my improved turnbuckle; and Fig. 4is a section taken on the line 4 4, Fig. 3.

In my preferred construction the body 1 of the turnbuckle engages at 2 by screw'connection with the bolt 3 which preferably has an eye 4 formed in one end thereof.

The-other end of the body 1 engages at 5 with a second bolt 6 by a reverse screw connection, so that the turning of the body will tendv to draw both bolts intovthe body or force both boltsoutwardly from the body.

A collar 7 is provided for the bolt 3 having wings 8-projecting therefrom as better.

shown 1n Fig.

The wings are of such length that they Copies of this patent may be obtained for ve, cents' each, by addressing the Commissioner of Entente, j

project beyond the side members 9 of the body l, and the collar closely fits the bolt 3 without screw connection.

A cotter pin 10 is. assed through apertures ll in the collar i) and the aperture 12 in the bolt 6, locking the collar to the bolt,

' and the wings 8 prevent the rotation ofthe bolt in the body l.

In the alternate construction shown in Fig. 3, the bolt 3 has the aperture 12 therein, and a cotter pin 10 passes through this aperture, but the body 1 is formed so thatthe side members 9 lie close to the bolt 3 so the cotter pin 10 can serve as a lock to prevent the turning of thefbolt 3 without the possibility of the cotter pin bending under stress.

The ordinary type of turnbuckle in cornmon use has had little or no means provided kfor preventing the turning of the bolts in the body, and as they are commonly used with twisted strands there is a tendency fory the turnbuckle to loosen, and in some cases heavy damages have resulted from the loosening up, of the strands through the turning of the bolt in the turnbuckle.

While I have described my invention and illustrated it in two designs, I 'do not wish it understood that I limit myselfV to these constructions, as it is evident that the invention may be varied in many ways within the scope of the following claim.

Claim:

A turnbuckle comprising in combination a body having a side member extending .longitudinally thereof, a bolt engaging with said body 'by screw connection, a collar associated with said bolt and having a wing eX- tending therefrom to engage with the side member of said body, said collar having an 'y aperture extending diametricallyk therethrough and said bolt having an aperture extendingvdiametrically therethrough,` and a pin passing through said apertures to lock said collar to said bolt.

BERTON M. MATI-IIAS.

Washington, D. G. 

